Wellington Candeia de Araujo

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This work presents an optimization on the input impedance of Koch Pre-fractals patches antennas using an efficient genetic algorithm (GA). The impedance matching is done by recesses (inset-fed), which is optimized to minimize the return loss (RL). The excitation of this structure is done using a microstrip line (L0). The antennas are designed using the(More)
A compact nickel-zinc ferrite dielectric resonator antenna built on a microstrip substrate is proposed as a possible candidate for wireless communication systems applications at the microwave band. These antenna properties are investigated using Ansoft HFSS through the implemented finite element method (FEM). The ceramic material was prepared through(More)
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